Short & Long Questions: Our Universe | Let's Look Around & Learn 2: Solutions, Notes & Worksheets - Class 2 PDF Download

Short Answer Questions

Q1: What is the sun, and what does it provide us?
Ans: The sun is a ball of fire that gives us light and heat.

Q2: Why does the sun look small in the sky?
Ans: The sun looks small because it is very far from us.

Q3: What gives the moon its light?
Ans: The moon gets its light from the sun.

Q4: Why does the earth look like a ball?
Ans: The earth is round like a ball.

Q5: Why is the earth called the 'Blue Planet'?
Ans: About three-fourths of the earth is covered with water, giving it the name 'Blue Planet.'

Q6: What is a globe, and what does it show about the earth?
Ans: A globe is a model of the earth, and it shows that the earth has more water than land.

Q7: What is unique about the stars in the sky?
Ans: Stars look very small because they are very far from us, and they have their own light.

Q8: Why do we have day and night on earth?
Ans: The earth receives light from the sun. The part facing the sun has day, while the other part has night.

Q9: What makes the earth spin, causing sunrise and sunset?
Ans: The earth spins like a top, resulting in the sun appearing to rise and set.

Q10: How much of the earth's surface is covered with water?
Ans: About three-fourths of the earth's surface is covered with water.

Long Answer Questions

Q1: Explain the role of the sun in providing light and heat to the earth.
Ans: The sun is a ball of fire that serves as the primary source of light and heat for the earth. It emits energy in the form of light and heat, making life possible for human beings, animals, and plants.

Q2: Describe the relationship between the sun, moon, and stars.
Ans: The moon gets its light from the sun, and we see different shapes of the moon at night. Stars, on the other hand, look small because of their distance and have their own light. The sun is also considered a star.

Q3: Why does the earth appear round, and why is it known as the 'Blue Planet'?
Ans: The earth is round like a ball, and approximately 75% of its surface is covered with water. This abundance of water gives the earth a blue appearance when viewed from space, earning it the name 'Blue Planet.'

Q4: Explain the concept of day and night on earth.
Ans: The earth receives light from the sun. The side facing the sun experiences daylight (day), while the side in shadow experiences nighttime (night). The rotation of the earth causes the sun to appear to rise and set, creating the cycle of day and night.

Q5: Discuss the unique characteristics of stars and why they look small in the sky.
Ans: Stars look small because they are incredibly far from us. Unlike the sun, stars have their own light, making them visible in the night sky. Their vast distance accounts for their apparent small size.

Q6: How does a globe represent the features of the earth?
Ans: A globe is a three-dimensional model that accurately represents the shape of the earth. It provides a visual depiction of the distribution of land and water on our planet, showing that there is more water than land.

Q7: Elaborate on the rotation of the earth and its impact on the perception of sunrise and sunset.
Ans: The earth spins like a top, causing the sun to appear to rise in the east and set in the west. This rotation creates the illusion of the sun moving across the sky, resulting in the regular occurrence of sunrise and sunset.

Q8: Discuss the significance of water on earth and its role in earning the planet the title 'Blue Planet'.
Ans: About three-fourths of the earth's surface is covered with water. This abundance of water not only influences the earth's appearance from space, earning it the nickname 'Blue Planet,' but it also plays a crucial role in sustaining life and ecological balance.

Q9: How is the moon connected to the changes in its shape, and why does it appear in the night sky?
Ans: The moon changes its shape in a cycle known as lunar phases, which is caused by the varying positions of the sun, moon, and earth. We see the moon at night because it reflects the sunlight it receives from the sun.

Q10: Why is the sun considered a star, and how does it differ from other stars in the night sky?
Ans: The sun is considered a star because it is a massive, luminous celestial body primarily composed of hydrogen and helium. While the sun is relatively close to the earth, other stars in the night sky appear small due to their immense distance and possess their own sources of light.